He stood in awe at the portal, undecided as to just what to do, for, in the opening hung the gauze-like curtain that obstructed his view of the interior. As he gazed at the veil he detected motion; then it dissolved itself into sections that moved independently of one another. Finally he could make out individual specks that whirled and danced with faintly buzzing wings and long, thread-like, dangling legs. The craneflies were keeping their yearly vigil, veiling the inner chamber from the profane glances of the outer world. An instant later a monstrous form charged out of the darkened interior scattering the madly gyrating insects like chaff before a wind. It was Suma, the Jaguar, but she acknowledged no relationship between herself and Warruk, her cub of last year. In him she saw only an intruder in her abode and a possible source of danger to her new little one reposing in the seclusion of the cavity. Warruk evaded the charge in a nimble spring to one side and, surprised and bewildered by the reception accorded him, dashed away--not in the direction whence he had come but straight over the top of the windfall. Ignorant of the pitfalls concealed by the mantel of creepers he hurried on his course, only to break through the thin veneer and plunge headlong into a black abyss; then he realized the treacherous nature of his footing. Catlike, he landed on his feet five yards below in the center of a great, hollow stub; and, cat-like, he almost immediately began to climb the circular wall that surrounded the damp, evil-smelling hole into which he had fallen. But the wood was decayed; it was so soft and spongy it would not support his weight. As fast as his claws dug into the sides of the stub flakes broke off so that he could not draw his body off the ground. He tried again and again; but always the result was the same. Warruk was a prisoner in a gloomy cavity and while his prison walls were decayed and crumbling they prevented him from climbing to safety as effectively as if they had been made of the hardest of steel. After numerous futile attempts the cub lay down panting, to rest. Suddenly he became aware of the fact that he was not the only occupant of the trap-like enclosure. A pair of beady eyes were silently regarding him from a crevice between two great roots. The eyes were sinister eyes, set too closely together to belong to an animal of any size unless----. With a shudder of terror the cub leapt to the farthest side of the prison, for the eyes were stealthily advancing, followed by a thick, sinuous body that seemed to flow from its hiding place. The newcomer was a great serpent.